87 lines
2.2 KiB
C
87 lines
2.2 KiB
C
/* md5.h
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The MD5 hash function, described in RFC 1321.
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Copyright (C) 2001 Niels Möller
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This file is part of GNU Nettle.
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GNU Nettle is free software: you can redistribute it and/or
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modify it under the terms of either:
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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or
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* the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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or both in parallel, as here.
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GNU Nettle is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received copies of the GNU General Public License and
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the GNU Lesser General Public License along with this program. If
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not, see http://www.gnu.org/licenses/.
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*/
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#ifndef NETTLE_MD5_H_INCLUDED
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#define NETTLE_MD5_H_INCLUDED
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#include "nettle-types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Name mangling */
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#define md5_init nettle_md5_init
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#define md5_update nettle_md5_update
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#define md5_digest nettle_md5_digest
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#define MD5_DIGEST_SIZE 16
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#define MD5_BLOCK_SIZE 64
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/* For backwards compatibility */
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#define MD5_DATA_SIZE MD5_BLOCK_SIZE
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/* Digest is kept internally as 4 32-bit words. */
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#define _MD5_DIGEST_LENGTH 4
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struct md5_ctx
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{
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uint32_t state[_MD5_DIGEST_LENGTH];
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uint64_t count; /* Block count */
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uint8_t block[MD5_BLOCK_SIZE]; /* Block buffer */
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unsigned index; /* Into buffer */
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};
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void
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md5_init(struct md5_ctx *ctx);
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void
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md5_update(struct md5_ctx *ctx,
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size_t length,
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const uint8_t *data);
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void
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md5_digest(struct md5_ctx *ctx,
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size_t length,
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uint8_t *digest);
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/* Internal compression function. STATE points to 4 uint32_t words,
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and DATA points to 64 bytes of input data, possibly unaligned. */
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void
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_nettle_md5_compress(uint32_t *state, const uint8_t *data);
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#ifdef __cplusplus
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}
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#endif
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#endif /* NETTLE_MD5_H_INCLUDED */
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